001    /**
002     *
003     *  Licensed to the Apache Software Foundation (ASF) under one or more
004     *  contributor license agreements.  See the NOTICE file distributed with
005     *  this work for additional information regarding copyright ownership.
006     *  The ASF licenses this file to You under the Apache License, Version 2.0
007     *  (the "License"); you may not use this file except in compliance with
008     *  the License.  You may obtain a copy of the License at
009     *
010     *     http://www.apache.org/licenses/LICENSE-2.0
011     *
012     *  Unless required by applicable law or agreed to in writing, software
013     *  distributed under the License is distributed on an "AS IS" BASIS,
014     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     *  See the License for the specific language governing permissions and
016     *  limitations under the License.
017     */
018    
019    package org.apache.geronimo.util.asn1;
020    
021    import java.io.ByteArrayOutputStream;
022    import java.io.IOException;
023    import java.util.Enumeration;
024    
025    /**
026     *
027     * @deprecated use DERSet
028     */
029    public class DERConstructedSet
030        extends ASN1Set
031    {
032        public DERConstructedSet()
033        {
034        }
035    
036        /**
037         * @param obj - a single object that makes up the set.
038         */
039        public DERConstructedSet(
040            DEREncodable   obj)
041        {
042            this.addObject(obj);
043        }
044    
045        /**
046         * @param v - a vector of objects making up the set.
047         */
048        public DERConstructedSet(
049            DEREncodableVector   v)
050        {
051            for (int i = 0; i != v.size(); i++)
052            {
053                this.addObject(v.get(i));
054            }
055        }
056    
057        public void addObject(
058            DEREncodable    obj)
059        {
060            super.addObject(obj);
061        }
062    
063        public int getSize()
064        {
065            return size();
066        }
067    
068        /*
069         * A note on the implementation:
070         * <p>
071         * As DER requires the constructed, definite-length model to
072         * be used for structured types, this varies slightly from the
073         * ASN.1 descriptions given. Rather than just outputing SET,
074         * we also have to specify CONSTRUCTED, and the objects length.
075         */
076        void encode(
077            DEROutputStream out)
078            throws IOException
079        {
080            ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
081            DEROutputStream         dOut = new DEROutputStream(bOut);
082            Enumeration             e = this.getObjects();
083    
084            while (e.hasMoreElements())
085            {
086                Object    obj = e.nextElement();
087    
088                dOut.writeObject(obj);
089            }
090    
091            dOut.close();
092    
093            byte[]  bytes = bOut.toByteArray();
094    
095            out.writeEncoded(SET | CONSTRUCTED, bytes);
096        }
097    }